Refine and filters

Refine and preprocess your input and filter out details in your images before passing them through the OCR engine within IronOCR!

Filter and Refine images all in a single package

Filter Wizard (Find the best filter combination with ease)

Not sure what settings have to be used to filter the image to be more accurate? No worries. IronOCR has a filter wizard that provides a list of filters to ensure you have the best result using several combinations.

Image Filters (Sharpen, Enhance, Resolution, Denoise, Dilate, Erode)

Do you want to ensure the image you input is sharpened, or is the image quality too low? We provide methods to enhance and sharpen the resolution and a myriad of options to help developers improve the confidence level of the OCR input without needing another external library!

Correcting Image Orientation (Rotate, Deskew, Scale)

If the input size is too small, there are times when the output could be clearer. But have no worries, as we can scale, rotate, and deskew the image input before passing it through to fix the issues of orientation and scaling within the library.

Refining Image Colors (Binarize, Grayscale, Invert, ReplaceColor, SelectTextColor)

Want to see how the image would perform in greyscale or another color? The library allows us to perform all these functionalities, such as inverting the colors, changing to grayscale, replacing the color, and more!